GOM Metrology

Plastic Parts and First Article Inspection

Plastic Parts and First Article Inspection

Inspecting Shape and Dimensions of the First Article

Full-field shape and dimension analyses including complete measuring and inspection reports (FAI) ensure that the functionality is secured and optical requirements are met and allows the tension-free mounting of a component. The first article inspection can be carried out based on the measuring plan (CMM inspection), CAD model or PMI data set with features such as Geometric Dimensioning and Tolerancing (GD&T). With GOM’s 3D full-field measuring system ATOS, no area of the part remains unchecked. GOM software allows for easy inspection of GD&T.


  • Inspection of geometry and material thickness
  • Sink marks, warpage and shrinkage (local/global)
  • Camber of tool
  • Cavity comparison
  • Geometric Dimensioning and Tolerancing, GPS


The easily understandable measuring results enable a fast determination of correction values for the tool geometry, such as sink marks or warpage and shrinkage, as well as for machine and process parameters including holding pressure, temperature control and filling time. Software features facilitate further detail checks: surface defect map, silhouette and cluster evaluation.